This view shows tracks created by NASA's Mars Exploration Rover Spirit while traveling from the bright soil deposit seen in the upper right, informally named "Tyrone," to the vehicle's current location, dubbed "Winter Haven."

Spirit parked at "Winter Haven" on a small north-facing slope to maximize solar energy input during the Martian winter. This stayover presents an opportunity to do more intensive, long-term investigations of the rover's surroundings than are typically possible during warmer seasons when the vehicle spends more time driving from place to place. One of these activities is assessing the influence of wind by monitoring surface changes. Experience from the Viking Landers of the 1970s suggests that wind-related surface changes are more likely to occur in recently disturbed soil. This mosaic view combines two cameras' images of disturbed soil in Spirit's tracks, taken shortly after arriving at Winter Haven. It will provide a comparison with future images to help reveal any wind-related surface changes.

The mosaic includes images of the rover's tracks obtained through the left eye of the navigation camera on the rover's 807th Martian day, or sol (April 11, 2006), merged with higher-resolution images obtained through the 750-nanomater filter in the left eye of the panoramic camera on sol 835 (May 9, 2006).